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Display panel apparatus and method of fabricating display panel apparatus

a technology of display panel and apparatus, applied in the direction of discharge tube luminescnet screen, discharge tube/lamp details, electric discharge lamps, etc., can solve problems such as degraded display quality, and achieve the effect of reducing the defect caused by the trapped gas in the planarizing film due to the electrode pla

Active Publication Date: 2015-02-10
JOLED INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The display panel apparatus has holes in it to release any gas that may be trapped during the process of making the panel. This reduces the chance of defects caused by trapped gas and ensures a better quality finished product.

Problems solved by technology

This is because lack of sufficient operational current supply decreases luminance, causes unevenness in luminance, and reduction in contrast, which are causes for degraded display quality.

Method used

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  • Display panel apparatus and method of fabricating display panel apparatus
  • Display panel apparatus and method of fabricating display panel apparatus
  • Display panel apparatus and method of fabricating display panel apparatus

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Experimental program
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embodiment 1

(Underlying Knowledge of the Present Invention)

[0039]The inventors found out that the light-emitting apparatus described on the background art section has the following problem.

[0040]In terms of the viewpoint for supplying the sufficient operational current to the organic EL device, larger area of the cathode-line in the light-emitting apparatus according to the conventional technology is preferable. However, providing the cathode-line in a wide area surrounding the display section raises the following problems with the conventional technology.

[0041]More specifically, in the fabrication process of the display apparatus, the lower electrode separated for each pixel is generally formed by photo etching after the planarizing film is formed, and the organic layer is subsequently stacked. When forming the planarizing film and the lower electrode, due to cleaning water and chemical solutions such as develop solution and acid, moisture, acid, and other components are absorbed by the planar...

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PUM

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Abstract

A display panel apparatus has a structure which is less likely to seal a planarizing film even when an electrode plate is provided on the planarizing film, and the display panel apparatus includes: a planarizing film formed on a substrate; a pixel formed on the planarizing film and including: a lower electrode; an organic layer; and an upper electrode; an auxiliary electrode electrically insulated from the lower electrode and electrically connected to the upper electrode; a display section including a plurality of the pixels; an electrode plate electrically connected to the auxiliary electrode and arranged to cover the planarizing film outside the display section; and a power supply section electrically connected to the electrode plate, and the electrode plate has a hole exposing a part of a surface of the planarizing film.

Description

CROSS REFERENCE TO RELATED APPLICATION(S)[0001]This is a continuation application of PCT Patent Application No. PCT / JP2010 / 006025 filed on Oct. 8, 2010, designating the United States of America, which is based on and claims priority of Japanese Patent Application No. 2009-238750 filed on Oct. 15, 2009. The entire disclosures of the above-identified applications, including the specifications, drawings and claims are incorporated herein by reference in their entirety.TECHNICAL FIELD[0002]The present invention relates to display panel apparatuses and methods of fabricating the display panel apparatuses, and particularly relates to an organic electroluminescent (EL) display panel apparatus using organic luminescent material.BACKGROUND ART[0003]The organic EL display apparatus is a light-emitting display apparatus using electroluminescence of organic compounds, and has been in practical use as a small display apparatus used for mobile phones and others.[0004]The organic EL display appara...

Claims

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Application Information

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Patent Type & Authority Patents(United States)
IPC IPC(8): H05B33/04H01L27/32H01L51/52H05B44/00
CPCH01L27/3276H01L51/5228H01L27/3258H10K59/124H10K59/131H10K71/40H10K59/80522H10K50/814H10K50/824H10K59/122H10K59/123H10K71/00
Inventor OSAKO, TAKASHIONO, SHINYANISHIYAMA, SEIJI
Owner JOLED INC